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Posted 2020-06-20 雁北

类定义：CMemberFuncPointer

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 1 // MemberFuncPointer.h: interface for the CMemberFuncPointer class.
 2 //
 3 //////////////////////////////////////////////////////////////////////
 4 
 5 #if !defined(AFX_MEMBERFUNCPOINTER_H__4D78718D_778E_4427_BBC1_C5F2D52C64E5__INCLUDED_)
 6 #define AFX_MEMBERFUNCPOINTER_H__4D78718D_778E_4427_BBC1_C5F2D52C64E5__INCLUDED_
 7 
 8 #if _MSC_VER > 1000
 9 #pragma once
10 #endif // _MSC_VER > 1000
11 
12 // 成员函数指针最大长度
13 #define MEMBER_FUNC_POINTER_MAX_SIZE 32
14 class CMemberFuncPointer  
15 {
16 public:
17     void Reset();
18     void Set(const void*pFunc,int p_size);
19     void Get(void*pFunc);
20     CMemberFuncPointer();
21     CMemberFuncPointer(const char pointerdata[],int p_size);
22     CMemberFuncPointer(void* pointerdata,int p_size);
23     virtual ~CMemberFuncPointer();
24     
25     bool operator==(const CMemberFuncPointer &mfp) const;
26     bool operator!=(const CMemberFuncPointer &mfp) const;
27 
28     CMemberFuncPointer& operator=(const CMemberFuncPointer &mfp);
29 
30 private:
31     int m_size;
32     char m_pointer_data[MEMBER_FUNC_POINTER_MAX_SIZE];
33 };
34 
35 #endif // !defined(AFX_MEMBERFUNCPOINTER_H__4D78718D_778E_4427_BBC1_C5F2D52C64E5__INCLUDED_)

MemberFuncPointer.h

  1 // MemberFuncPointer.cpp: implementation of the CMemberFuncPointer class.
  2 //
  3 //////////////////////////////////////////////////////////////////////
  4 
  5 #include "stdafx.h"
  6 #include "OverlapRoutine.h"
  7 #include "MemberFuncPointer.h"
  8 
  9 #ifdef _DEBUG
 10 #undef THIS_FILE
 11 static char THIS_FILE[]=__FILE__;
 12 #define new DEBUG_NEW
 13 #endif
 14 
 15 //////////////////////////////////////////////////////////////////////
 16 // Construction/Destruction
 17 //////////////////////////////////////////////////////////////////////
 18 
 19 CMemberFuncPointer::CMemberFuncPointer()
 20 {
 21     this->m_size = 0;
 22 }
 23 
 24 CMemberFuncPointer::CMemberFuncPointer(const char pointerdata[],int p_size)
 25 {
 26     if(p_size<=MEMBER_FUNC_POINTER_MAX_SIZE)
 27     {
 28         this->m_size = p_size;
 29         memcpy(this->m_pointer_data,pointerdata,p_size); 
 30     }
 31     else
 32     {
 33         this->m_size = 0;
 34     }
 35 }
 36 
 37 CMemberFuncPointer::CMemberFuncPointer(void* pointerdata,int p_size)
 38 {
 39     if(p_size<=MEMBER_FUNC_POINTER_MAX_SIZE)
 40     {
 41         this->m_size = p_size;
 42         memcpy(this->m_pointer_data,pointerdata,p_size); 
 43     }
 44     else
 45     {
 46         this->m_size = 0;
 47     }
 48 }
 49 
 50 CMemberFuncPointer::~CMemberFuncPointer()
 51 {
 52 
 53 }
 54 
 55 bool CMemberFuncPointer::operator==(const CMemberFuncPointer &mfp) const
 56 {
 57     if(this->m_size==mfp.m_size) //mfp.m_size 可以访问私有成员
 58     {
 59         if(0==memcmp(this->m_pointer_data,mfp.m_pointer_data,this->m_size))
 60         {
 61             return true;
 62         }
 63     }
 64 
 65     return false;
 66 }
 67 
 68 bool CMemberFuncPointer::operator!=(const CMemberFuncPointer &mfp) const
 69 {
 70     if(this->m_size==mfp.m_size) //mfp.m_size 可以访问私有成员
 71     {
 72         if(0==memcmp(this->m_pointer_data,mfp.m_pointer_data,this->m_size))
 73         {
 74             return false;
 75         }
 76     }
 77 
 78     return true;
 79 }
 80 
 81 void CMemberFuncPointer::Get(void *pFunc)
 82 {
 83     memcpy(pFunc,this->m_pointer_data,this->m_size);
 84 }
 85 
 86 void CMemberFuncPointer::Set(const void *pFunc,int p_size)
 87 {
 88     memcpy(this->m_pointer_data,pFunc,p_size);
 89     this->m_size = p_size;
 90 }
 91 
 92 void CMemberFuncPointer::Reset()
 93 {
 94     this->m_size = 0;
 95 }
 96 
 97 CMemberFuncPointer& CMemberFuncPointer::operator =(const CMemberFuncPointer &mfp)
 98 {
 99     if(this != &mfp)
100     {
101         memcpy(this->m_pointer_data,mfp.m_pointer_data,mfp.m_size); //mfp.m_pointer_data 可以访问私有成员
102         this->m_size = mfp.m_size;  //mfp.m_size 可以访问私有成员
103     }
104 
105     return *this;
106 }

CMemberFuncPointer.cpp